
import java.util.Date;
import java.util.Scanner;

class Data {

    private int x;
    private int y;
    public Data(int x, int y) {
        this.x = x;
        this.y = y;
    }
    public int getX() {
        return x;
    }



    public int getY() {
        return y;
    }



}

public class TestMain2 {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextInt()) {
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            Data date = new Data(a,b);
            System.out.println(date.getX()+ date.getY());
        }
    }

}


